diff --git a/src/gui/formupdate.cpp b/src/gui/formupdate.cpp
index 5e630b1db..d5648a819 100755
--- a/src/gui/formupdate.cpp
+++ b/src/gui/formupdate.cpp
@@ -141,6 +141,7 @@ void FormUpdate::startUpdate() {
 #endif
 }
 
+#if defined(Q_OS_WIN) || defined(Q_OS_OS2)
 void FormUpdate::finish(QNetworkReply::NetworkError err, QByteArray arr)
 {
   // TODO: presunou do updatera.
@@ -185,3 +186,4 @@ void FormUpdate::finish(QNetworkReply::NetworkError err, QByteArray arr)
     // TODO: chyba - nelze ulozit soubor.
   }
 }
+#endif
diff --git a/src/gui/formupdate.h b/src/gui/formupdate.h
index eb760f08e..07d913e34 100644
--- a/src/gui/formupdate.h
+++ b/src/gui/formupdate.h
@@ -47,7 +47,9 @@ class FormUpdate : public QDialog {
     void checkForUpdates();
     void startUpdate();
 
+#if defined(Q_OS_WIN) || defined(Q_OS_OS2)
     void finish(QNetworkReply::NetworkError err, QByteArray arr);
+#endif
 
   private:
     Ui::FormUpdate *m_ui;